When two hydrogen atoms get close enough, the electron from each atom feels an attraction from the proton in the other atom's nucleus. This attraction pulls the atoms together. The electrons end up ...

The nucleus is very small compared to the atom as a whole: as electrons are even smaller, most of an atom is empty space the diameter of a nucleus can be 100,000 times less than the diameter of an ...

Norman Campbell discusses the problem of the possible consistency of the assumptions about the motion and arrangement of electrons in the atom underlying ... theory of atomic structure, and ...

Relativistic electrons can produce transition and Cherenkov radiation, which can excite the waveguide modes of a structure — potentially ... impurities with single-atom resolution.

The attraction by the chlorine atoms is stronger than the attraction by the calcium atom. Two electrons are transferred from the calcium atom, one to each chlorine atom. Calcium becomes a +2 ion and ...

National University of Singapore (NUS) chemists have developed an "anchoring-borrowing" strategy, combined with facet ...

Studying the structure of the atom on smaller scales and being able to produce particles with higher masses is what drove the development of accelerators with ever-higher energies. In a ...

National University of Singapore (NUS) chemists have developed an “anchoring-borrowing” strategy, combined with facet engineering, to develop a new class of artful single-atom catalysts (ASACs). These ...